Thanks Victor! I have not thought about the effect variables have on the return itself and how it therefore gives you advantages in reducing turnover.
If variables do not present a realistic picture of costs, you can easily forcing turnover down unnecessarily, which will have a negative impact on the return because you have taken into consideration a cost in turnover that is not essential.
Here is the difference in one of my systems, with and without “variables”:
Both have “Force Positions into Universe”